Printing press for printing wax carbon spots on sheets of paper



Dec. 11, 1934. G. A. RUTKOSKIE 1,983,943

PRINTING PRESS F'QR PRINTING WAX CARBON SPOTS ON SHEETS OF PAPER Filed OG'L ZG, 1934 2 Sheets-Sheet l INVENTOR.

ATTORNEY.

Patented Dec. 11, 1934 UNITED STATES PRINTING PRESS FOR PRINTING WAX CARBON SPOTS ON SHEETS OF PAPER George A. Butkolkie, Athens, Ohio, aaalgnor to The McBee Company, ration oi Ohio Athens, Ohio, a com- Appiioaflon 26, 1934, Serial No. 750,031 7 Giaims. (CL 101-345) My invention relates to the type of press described in my Reissue Patent No. 18,931. As stated in that patent, I have discovered that, unlike printers ink, wax carbo when melted to the consistency required to print the spots of carbon on sheets of paper, has no tack at all, with the result that satisfactory work cannot be turned out where the rotation of the various rollers on the press depends upon their frictional engagement. I therefore provide means in the said patent for positively driving the ductor roller by gears carried by both the vibrator and ink fountain rollers.

I have found in practice that it is also necessary to have the form rollers positively driven. These rollers are usually loosely mounted in form roller bearings and upon contact with the surface of the ink plate, as it is reciprocated, they revolve first in one direction and then in the other as the type bed and ink plate are reciprocated backwards and forwards by the press mechanism. But as heretofore explained, while this will operate satisfactorily to distribute the ink, when it has tack inherent in its composition, wax carbon, when melted to the critical temperature required to print spots on sheets of paper, has no adhesiveness', the inevitable result is that if one relies upon the tack to bring about the revolution of the form rollers they may not revolve and a faulty job results. In fact they more likely will act as a squeegee and wipe all of the wax carbon compound oi! of the ink plate and leave a dry spot on the form roller. If the roller is not rotating at the time it is in contact with the form, practice has shown that it is apt to cause a ghost line". In most presses there are a number of form rollers and if a number are used it is highly desirable that all of them be positively rotated not only when they contact the ink plate but during such contact.

My invention has for its principal object to provide for an addition to a standard Kelly press whereby one or more of the three form rollers (which as is well known now rest loosely in bearing brackets mounted on the frame of the press) will have a positive drive so that they will be positively rotated both at the time of and during the contact with the ink plate.

A further object is to have them arranged to synchronize with and be rotated by the mechanism which is provided to drive the press.

My means of accomplishing the foregoing objects may be more readily understood by having reference to the accompanying drawings which are hereunto annexed and are a part of this specification, in which Fig. 1 is a perspective view of a portion-of a Kelly press having the large steel vibrator roller, rider composition roller, and the small steel vibrator roller thrown back to show the drive for a form roller;

Fig. 2 is a fragmentary detail view showing a portion of the housing and the manner of mounting the drive thereon;

Fig. 3 shows a modified form of drive; and

Fig. 4 is a diagrammatic view of the train of gears in mesh.

Figure 5 is a top plan view showing means for heating the various parts of the press which contact the wax carbon.

Similar reference numerals refer to similar parts throughout the entire description.

As shown in the drawings, the press, which is preferably a Kelly press, though it will be apparent from the hereinafter contained description that my invention is not confined to that type, is provided with an ink fountain 1, an ink fountain roller 2, a ductor roller 2', a large steel vibrator roller 3, and a small vibrator roller 4. The vibrating mechanism for these rollers (which do not contact each other) is not visible as it is on the opposite side of the press from which the view is taken.

As is well known to persons skilled in the art, the inking form rollers 5, only one of which is shown in Fig. 1, are loosely mounted in form roller bearings 6 which are adjustably secured to the sides of the press in the well known manner.

.The press is provided with a type bed 7 which 0 is reciprocated by the mechanism of the press (not shown) and carries with it an ink plate 8.

As shown in Fig. 1, a plate 9 is mounted upon the type bed I for printing a spot of wax carbon. The type bed 'I has secured to one side a toothed rack 10.

I provide a gear 11 which I rotatably mount upon a shaft 12 which is located in the end wall 13 of the housing. In Fig. 1 this end wall 13 of the housing, is shown in dotted lines. In Fig. 2 I have shown the same wall in full lines with the gears in position.

This gear 11 is in mesh with an intermediate pinion 14 rotatably mounted upon a shaft 15 mounted in the end wall 13 of the housing. The

' pinion 14 meshes with a gear 16 rotatably mountincluding a reciprocating ink-plate, a rack moved upon the shaft of the large steel vibrator roller 3 when the vibrator roller 3 is in position for operation. The vibrator roller gear 18 meshes with a gear 19 mounted upon the shaft of the composition rider roller (not shown). The rider roller gear 19 meshes with a gear 20 on the shaft of the small vibrator roller 4 so that when rotating it serves to rotate the said small vibrator roller 4.

The form roller 5 is provided with a gear 21 which is mounted inside of the frame 22 of the press. This gear is so located that it will mesh with the teeth of the gear'18 on the shaft of the large steel vibrator roller 3 when it is in operative position. From this it will be seen that when the driving mechanism of the press reciprocates the type bed, carrying with it the rack 10, the gear 11 will be rotated and in turn will drive the intermediate pinion 14 and the gear 16. This will rotate the gear 18 and it will drive the gear 21 on the form roller 5. As the form roller 5 is back of the ink plate 8 it follows that it will be rotating at the time that it contacts the ink plate and will continue to be positively rotated not only during the contact with the ink plate but also when it delivers the wax carbon to the printing plate 9. In Fig. 5 I have shown a preferred form of heating consisting of a number of electric heating elements. I mount an element 23 adjacent the ink fountain 1 and another element 24 in the ink fountain roller 2. A similar element 25 is mounted in the vibrator roller 4. An element 26 is mounted adjacent the form rollers 5. In the ink plate 8, I mount an element 27. In the type bed 7, a suitable number of elements 28 are located to provide the necessary temperature. These elements operate to heat all parts of the press which contact the wax carbon.

Although I have described a specific means for positively driving the form roller, it will be apparent to persons skilled in the art that many different forms may be employed to bring about this necessary result in a press for printing spots of wax carbon.

As an example, I have, in Fig. 3, shown a gear 21 which is arranged to mesh with the teeth of the rack -10 and therefore to be driven directly by the reciprocation of the rack without the interposition of a train of gears such as is shown in Fig. 1. Other forms of bringing about the positive rotation of the form roller 5 may be utilized without departing from the scope of my invention as claimed.

In Fig. 1 I have only shown a single form roller which in the majority of operations is sui'iicient. There are, however, some jobs where the printing plates are at widely separated positions onthe type bed when it is desirable to have more than one form roller. When this is done suitable gears may be provided to positively drive the additional form rollers.

Having described my invention what I regard as new and desire to secure by Letters Patent is:

1. In a printing press for printing spots of wax carbon on sheets of paper, an inking mechanism including a reciprocating ink plate, a rack movable with the ink plate, a form inking roller, and a vibrator roller, a train of gearing including a gear driven by the rack and a gear on the vibrator roller and the form inking roller for positively driving the form inking roller when it contacts and during its contact with the ink plate and the form.

2. In a printing press for printing spots of was carbon on sheets or paper, an inking mechanism able with the ink plate, 8.- form .lnkml-lollel', 811d a vibrator roller, means to heat plate. a train of gearing including a gear driven by the rack and a gear on the vibrator roller and the form inking roller for positively driving the form inking roller when it contacts and during its contact with the ink plate and the form.

3. In a printing press for printing spots of wax carbon on sheets of paper having ,a housing, an ink fountain, an ink fountain roller, ductor roller, distributor roller, vibrator roller and form roller. an ink plate, a reciprocating type bed having a rack thereon, said ink plate Supported by and moving with said type bed, means to heat all parts of the press which contact-the wax carbon; a

gear actuated by the reciprocation of the rack, a shaft on which said gear is mounted secured to the housing, an intermediate pinion mounted on a second shaft also mounted in the vhousing, 2 pinion being driven by said gear, a second gear rotatably mounted on a shaft secured to the hous ing, said second gear in mesh with the intermediate pinion, a gear on the shaft of the vibrator roller in mesh with the teeth of the last named gear, a gear on the shaft of the form roller in mesh with the gear on the vibrator roller shaft. whereby the reciprocation of said rack causes the rotation of the form roller at and during its contact with the ink plate and form.

,4. In a printing press for printing spots of wax carbon on sheets of paper, an inking mechanism including a housing, a reciprocating ink plate.

a rack movable with the ink plate, a form inking roller and a vibrator roller, a gear driven by the rack, a shaft on which said gear is mounted 'secured to the housing, an intermediate pinion mounted on a second shaft, also mounted in the housing, said pinion being driven by said gear, a second gear rotatably mounted on a shaft secured to the housing, said second gear in mesh with the intermediate pinion, a gear on the shaft of the vibrator roller in mesh with the teeth of the last named gear, a gear on the shaft of the form roller in mesh with the gear on the vibrator roller shaft. whereby the reciprocation of said rack causes the rotation of the form roller at and during its contact with the ink plate and the form.

5. In a printing press for printing spots of wax carbon on sheets of paper, an inking mechanism including a housing, a reciprocating ink plate, a rack movable with-the ink plate, a form inking roller and a vibrator roller, means to heat the ink plate, a gear driven by the rack, a shaft on which said gear is mounted secured to the housing, an intermediate pinion mounted on a second shaft, also secured to the housing, said pinion being driven, by said gear, a second gear rotatably mounted on a shaft secured to the housing, said including a reciprocating ink plate, a rack mov-.

able with the ink plate, a form inking roller, a vibrator roller, means to heat said plate and said rollers, a train of gearing including a gear driven by the rack and a gear on-the vibrator roller and iii) ink plate, intermeshing gears on the vibrator the form inking roller for positively driving the form inking roller when it contacts and during its contact with the ink plate and the form.

'7. In a printing press for printing spots of wax 5 carbon on sheets of paper, an inking mechanism comprising a reciprocating ink plate, a vibrator roller, a form roller intermittently contacting the roller, and form roller, a train'of gearing to drive the gear on the vibrator roller for positively driving the form roller at and during its contact with the ink plate.

GEORGE A. RU'I'KOSKIE. 

